United States securities and exchange commission logo April 28, 2021 Hyun Park Senior Vice President and Chief Legal Officer FirstEnergy Corp. 76 South Main Street Akron, OH 44308 Re: FirstEnergy Corp. Form 10-K for the Fiscal Year ended December 31, 2020 Filed February 18, 2021 File No. 333-21011 Dear Mr. Park: We have completed our review of your filing. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Office of Energy & Transportation